Question

question 7 (1 point)
which of the following sources of energy has an antifreeze solution running through pipes within a flat black box on the roof of a building?
○ passive solar energy systems
○ active solar energy systems
○ earth energy systems
○ geothermal power stations

question 8 (1 point)
which of the following sources of energy relies on a roof overhang above a south - facing window?
○ a passive solar energy system
○ an earth energy system
○ an active solar energy system
○ wind power

Explanation:

1. Active solar systems use fluid-filled (often antifreeze) pipes in roof-mounted flat plate collectors (the flat black box) to absorb and transfer solar heat.
2. Passive solar energy systems use building design features like south-facing windows with roof overhangs to control solar heat gain (blocking summer sun, letting in winter sun) without mechanical components.

Answer:

1. active solar energy systems
2. a passive solar energy system